Siemens SITRANS FS230 - Input specifications

7.3 Modbus interface
Table 7-3 Modbus communication
Description Speci󹪝cation
Protocol version Modbus RTU
Default transmission rate 19200 bit/s
Default parity Even
Default device address 1
7.4 Inputs
Table 7-4 Digital input (Channels 3 and 4)
Description Channels 3 and 4
Load 15 … 30V DC, R
in
7 kΩ
Functionality
• Reset totalizer 1, 2 or 3
• Reset all totalizers
• Freeze process values
• Force outputs
Table 7-5 Current input (Channels 3 and 4)
Description Channels 3 and 4
Signal range
• 0 … 20mA (EX-version)
• 0 … 25mA (non-EX-version)
Resolution 0.5µA
Load
• <470 Ω (EX-version)
• <770 Ω (non-EX-version)
Terminal voltage
• 8.5… 30V DC (EX-version)
• 11… 30V DC (non-EX-version)
Voltage range Max. 24V DC (active)
14 … 30V DC (passive)
Time constant (adjustable) 0 … 100s
Fault current
Measurement range
Minimum alarm
Maximum alarm
US:
4 … 20.8mA
3.75mA
22.6mA
NAMUR:
3.8 … 20.5mA
3.5mA
22.6mA
Technical speci󹪝cations
7.4Inputs
SITRANS FS130 & FS230
98 Compact Operating Instructions, 12/2023, A5E38755607-AF